Obtaining the Skill

Training Method

Tips

"Use the skill on a clear day" and "Use the skill in the rain" are referring to weather. By contrast "Use Water Cannon under a cloud" is referring to a cloud created by Rain Casting and cloudy weather does not work.

Simpler still is having four or more fresh base herb patches in your homestead and a sufficient rank of Herbalism to pick them. You only need your bare hands to pick the herbs, making it preferable to mining Moon Stone Pieces. At earlier ranks, where you only need 10 or less successful gathers, mining for Homestead Stones under a cloud also works.

Oneself, other players, and Pets will each count toward the "5 or more person are exposed to rain under a cloud." Training Requirement.

Other players and their pets do not need to be in your party to count towards this requirement.

People do not need to be under your cloud at the same time. As long as 5 different people pass under your cloud before it disappears, you will receive training.

Recommended to go to a busy channel or just summon/cancel enough pets in quick succession.

For Ranks 5 and above, the "Successful finish in producing under a cloud." requirement may only be met when applying the finishing step to an item that is being tailored or smithed.

Using the Sewing Pattern for the Hairband is recommended as all of its materials can be bought from an NPC at a very low cost.

At high ranks of Rain Casting, if you or a friend has rank 1 Shock and you have access to variable -CP gear, you can easily fulfill the defeat an enemy with water cannon while under a cloud requirements using the first room of Sulfur Spider on Basic or Int difficulties. The sheer volume of enemies can get you anywhere between 20-30 kills per cast of Rain Casting. Put yourself into a party and set the finish rule to Anyone Can Finish. While whoever uses Shock passively kills enemies, you can target the ones who need to be finished off with Water Cannon. Be sure to use a Tidal Wave or Hurricane Cylinder to extend the duration of the cloud. While the Hurricane Cylinder will extend the duration for longer, the Tidal Wave Cylinder will further boost your Water Cannon damage, making it easier to pick off half-dead enemies when Shock expires.